Patients who have undergone surgery for rectal cancer should pay attention to the following points regarding their diet:

First, consume a moderate amount of foods containing monounsaturated fatty acids, such as olive oil and tuna.

Second, avoid overheating animal products and vegetable oils during cooking.

Third, eat more foods rich in dietary fiber, such as konjac, soy and its products, fresh vegetables and fruits, and algae.

Fourth, intake vitamins and trace elements by eating fresh vegetables and fruits to supplement carotene and vitamin C, and consume appropriate amounts of walnuts, peanut milk, products, and seafood to supplement vitamin E. Pay attention to the intake of foods rich in the trace element selenium, such as malt, fish, and mushrooms.